I have a Kindle Fire I use because I want color, but I hear good things about the Kindle Paperwhite if you don't need color. It's cheaper and works in sunlight (the Kindle Fire isn't very legible in sunlight). The Barnes and Noble Nook will also work. If you just want talking books, all you need is an MP3 player.
I want to buy an ereader that I can download books from my local library with out using a home computer.